Howdy all!
I have some more enum questions!
Looking at the HDF5 users guide, I see the following example:
hid_t hdf_en_colors = H5Tcreate(H5T_ENUM, sizeof(short));
short val;
H5Tenum_insert(hdf_en_colors, "RED", (val=0,&val));
H5Tenum_insert(hdf_en_colors, "GREEN", (val=1,&val));
H5Tenum_insert(hdf_en_colors, "BLUE", (val=2,&val));
H5Tenum_insert(hdf_en_colors, "WHITE", (val=3,&val));
H5Tenum_insert(hdf_en_colors, "BLACK", (val=4,&val));
H5Dcreate(fileid,spaceid,hdf_en_colors,H5P_DEFAULT);
I have three immediate questions:
1 - Why is H5Tenum_create not used?
2 - In the above case, how does HDF5 choose the underlying integer
type? Obviously it will be a short, but signed or unsigned? Big,
little, or native endian? Or does it not matter?
3 - What is this strage way of setting the value of val inside the
parameters to the function? In 20 years of C programming, I have never
seen this technique!
Thanks!
Ed
--
Ed Hartnett -- ed@xxxxxxxxxxxxxxxx
